Part Details | SPHERE OPHTHALMIC LENS
6540-00-764-2256 A transparent optical element having equal spherical diopter curvatures used to correct hyperopic (farsightedness) or myopic (nearsightedness) conditions of the eye.
Alternate Parts: MILL16991A, 6540-00-764-2256, 00-764-2256, 6540007642256, 007642256
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 65 | JAN 01, 1960 | 00-764-2256 | 04122 ( LENS, OPHTHALMIC, SPHERE ) |
REFERENCE DRAWINGS & PICTURES
SPHERE
ROUND
Cross Reference | NSN 6540-00-764-2256
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| MILL16991A | 81349 | MILITARY SPECIFICATIONSPROMULGATED BY MILITARY |
Technical Data | NSN 6540-00-764-2256
| Characteristic | Specifications |
|---|---|
| STYLE DESIGNATOR | ROUND |
| DIAMETER | 52.0 MILLIMETERS MINIMUM AND 56.0 MILLIMETERS MAXIMUM |
| MATERIAL AND LOCATION | GLASS, SODA-LIME OVERALL |
| LIGHT TRANSMISSION | UNTINTED |
| CROSS-SECTIONAL SHAPE STYLE | SPHERE |
| BASE CURVE DIOPTER | 0.81 PLUS MINIMUM AND 0.93 PLUS MAXIMUM |
| CROSS CURVE DIOPTER | 0.81 PLUS MINIMUM AND 0.93 PLUS MAXIMUM |
| NONDEFINITIVE SPEC/STD DATA | 2 TYPE AND 1 STYLE AND E CLASS AND 52 SIZE |
| DEPARTURE FROM CITED DESIGNATOR | AS MODIFIED BY SIZE |
| SPECIAL PACKAGING | PR OF IDENTICAL LENSES |